/* XXL: The eXtensible and fleXible Library for data processing

Copyright (C) 2000-2011 Prof. Dr. Bernhard Seeger
                        Head of the Database Research Group
                        Department of Mathematics and Computer Science
                        University of Marburg
                        Germany

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library;  If not, see <http://www.gnu.org/licenses/>. 

    http://code.google.com/p/xxl/

*/

package xxl.core.xxlinq;

import xxl.core.math.functions.AggregationFunction;
import xxl.core.math.functions.MetaDataAggregationFunction;
import xxl.core.relational.tuples.Tuple;
import xxl.core.util.metaData.CompositeMetaData;

// evtl AdvResultSetMetaDataAggregator als name?
public abstract class AggregateColumn extends MetaDataAggregationFunction<Tuple, Object, CompositeMetaData<Object, Object>>{

	private static final long serialVersionUID = 3510549313156738242L;
	public AggregateColumn(AggregationFunction<? super Tuple, Object> aggregationFunction) {
		super(aggregationFunction);
	}
	public abstract void setMetaData(AdvResultSetMetaData metadata, String newAlias);
}
